Dispersion-modified actively mode-locked erbium fibre laser using a chirped fibre grating

P.N. Kean, John W.D. Gray, Ian Bennion, Nick Doran

    Research output: Contribution to journalArticlepeer-review


    The authors describe the operation of an actively modelocked Er fibre laser incorporating a chrped in fibre Bragg reflection grating as one end mirror to the cavity, acting as a lumped highly dispersive element. In one oreientation the grating shifted the cavity into normal dispersion regime and pulses of -25ps duration were produced. In the opposite oreintation, the cavity dispersion was anomalous and ~8ps pulses were produced with characterisitics typical of solitons propagating in a periodically perturbed system.
    Original languageEnglish
    Pages (from-to)2133-2135
    Number of pages3
    JournalElectronics letters
    Issue number25
    Publication statusPublished - 8 Dec 1994


    • actively modelocked Er fibre laser
    • chirped in-fibre Bragg reflection grating
    • end mirror
    • highly dispersive element
    • normal dispersion regime
    • cavity dispersion
    • solitons
    • periodically perturbed system
    • dispersion-modified lasers
    • Er3+-doped fibre
    • 25 ps
    • 8 ps


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